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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.core.implementation.processor;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Set;
+
+import org.osoa.sca.annotations.Callback;
+import org.osoa.sca.annotations.Remotable;
+
+import org.apache.tuscany.spi.annotation.Autowire;
+import org.apache.tuscany.spi.component.CompositeComponent;
+import org.apache.tuscany.spi.deployer.DeploymentContext;
+import org.apache.tuscany.spi.idl.InvalidServiceContractException;
+import org.apache.tuscany.spi.implementation.java.ImplementationProcessorExtension;
+import org.apache.tuscany.spi.implementation.java.JavaMappedProperty;
+import org.apache.tuscany.spi.implementation.java.JavaMappedReference;
+import org.apache.tuscany.spi.implementation.java.JavaMappedService;
+import org.apache.tuscany.spi.implementation.java.PojoComponentType;
+import org.apache.tuscany.spi.implementation.java.ProcessingException;
+import org.apache.tuscany.spi.implementation.java.ImplementationProcessorService;
+import org.apache.tuscany.spi.model.ServiceContract;
+
+import static org.apache.tuscany.core.util.JavaIntrospectionHelper.getAllInterfaces;
+import static org.apache.tuscany.core.util.JavaIntrospectionHelper.toPropertyName;
+
+/**
+ * Processes an {@link org.osoa.sca.annotations.Service} annotation and updates the component type with corresponding
+ * {@link JavaMappedService}s. Also processes related {@link org.osoa.sca.annotations.Callback} annotations.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ServiceProcessor extends ImplementationProcessorExtension {
+
+ private ImplementationProcessorService implService;
+
+ public ServiceProcessor(@Autowire ImplementationProcessorService implService) {
+ this.implService = implService;
+ }
+
+ public <T> void visitClass(CompositeComponent parent, Class<T> clazz,
+ PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type,
+ DeploymentContext context) throws ProcessingException {
+ org.osoa.sca.annotations.Service annotation = clazz.getAnnotation(org.osoa.sca.annotations.Service.class);
+ if (annotation == null) {
+ // scan intefaces for remotable
+ Set<Class> interfaces = getAllInterfaces(clazz);
+ for (Class<?> interfaze : interfaces) {
+ if (interfaze.getAnnotation(Remotable.class) != null) {
+ JavaMappedService service;
+ try {
+ service = implService.createService(interfaze);
+ } catch (InvalidServiceContractException e) {
+ throw new ProcessingException(e);
+ }
+ type.getServices().put(service.getName(), service);
+ }
+ }
+ return;
+ }
+ Class<?>[] interfaces = annotation.interfaces();
+ if (interfaces.length == 0) {
+ Class<?> interfaze = annotation.value();
+ if (Void.class.equals(interfaze)) {
+ throw new IllegalServiceDefinitionException("No interfaces specified");
+ } else {
+ interfaces = new Class<?>[1];
+ interfaces[0] = interfaze;
+ }
+ }
+ for (Class<?> interfaze : interfaces) {
+ if (!interfaze.isInterface()) {
+ throw new InvalidServiceType("Service must be an interface", interfaze.getName());
+ }
+ JavaMappedService service;
+ try {
+ service = implService.createService(interfaze);
+ } catch (InvalidServiceContractException e) {
+ throw new ProcessingException(e);
+ }
+ type.getServices().put(service.getName(), service);
+ }
+ }
+
+
+ public void visitMethod(CompositeComponent parent,
+ Method method,
+ PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type,
+ DeploymentContext context) throws ProcessingException {
+
+ Callback annotation = method.getAnnotation(Callback.class);
+ if (annotation == null) {
+ return;
+ }
+ if (method.getParameterTypes().length != 1) {
+ throw new IllegalCallbackReferenceException("Setter must have one parameter", method.toString());
+ }
+ String name = toPropertyName(method.getName());
+ JavaMappedService callbackService = null;
+ Class<?> callbackClass = method.getParameterTypes()[0];
+ for (JavaMappedService service : type.getServices().values()) {
+ ServiceContract serviceContract = service.getServiceContract();
+ if (serviceContract.getCallbackClass().equals(callbackClass)) {
+ callbackService = service;
+ }
+ }
+ if (callbackService == null) {
+ throw new IllegalCallbackReferenceException("Callback type does not match a service callback interface");
+ }
+ callbackService.setCallbackReferenceName(name);
+ callbackService.setCallbackMember(method);
+ }
+
+ public void visitField(CompositeComponent parent, Field field,
+ PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type,
+ DeploymentContext context) throws ProcessingException {
+
+ Callback annotation = field.getAnnotation(Callback.class);
+ if (annotation == null) {
+ return;
+ }
+ String name = field.getName();
+ JavaMappedService callbacksService = null;
+ Class<?> callbackClass = field.getType();
+ for (JavaMappedService service : type.getServices().values()) {
+ ServiceContract serviceContract = service.getServiceContract();
+ if (serviceContract.getCallbackClass().equals(callbackClass)) {
+ callbacksService = service;
+ }
+ }
+ if (callbacksService == null) {
+ throw new IllegalCallbackReferenceException("Callback type does not match a service callback interface");
+ }
+ callbacksService.setCallbackReferenceName(name);
+ callbacksService.setCallbackMember(field);
+ }
+
+
+}